Shutter-worker



(ModeL) J. DIERKS. SHUTTER WORKER.

No. 322,588. Patented July 21, 1885.

777/II/I/A E u munulu,

INVENTOR BY WITN ES:

ATTORNEYS.

N. PETERS. Fhnw-L'rlhngmpher. Washingnm DC UNITED STATES PATENT OFFICE.

JOHN means, or HARLAN, IOWA.

SHUTTER-WORKER.

SPECIFICATION forming part of Letters Patent No. 322,588 dated July 21,1885.

Application filed August 22, 1884.

To all whom; it may concern.-

Be it known that I, JOHN DIERKs, of Harlan, in the county of Shelby andState of Iowa, have invented a new and Improved Shutter- W'orker, ofwhich the following is a full,clear, and exact description.

This invention relates to an improvement in shutter-workers; and itconsists, principally, of a hinge with one leaf provided with anexternally-toothed socket or eye, the teeth of said socket or eye beingformed directly in the surface of the socket, combined with a spindlehaving a screw-thread or worm engaging said toothed socket or eye of,leaf, substantially as hereinafter more fully set forth and claimed.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is an elevation of a blind or shutter with the worker applied.Fig. 2is across section on the line of the spindle, and Fig. 3 shows thetoothed hinge-leaf.

A represents the windowjamb or other fixed support, on which the shutterB is hung by hinges, the worker being applied to the lower hinge. Thehalf portion or leaf a of thehinge that is fixed on the shutter has itseye portion 12 formed with teeth on its outside surface, so that it ispractically a worm pinion. The

jalnb A is bored, and through it passes a spindle, d, whose outerend issupported by a flange, 6, formed on the leaf (1 of the hinge, and theend of the spindle is out with a thread that engages the teeth on theeye piece or pinion b. The spindle d is shouldered to take against the(Model) jamb, and its inner end is squared to receive a crank-handle, f,for use in turning the spindle, or in place of the handle an ornamentalknob or wheel may be used.

It willbe seen that by this construction and arrangement the shutter orblind can be opened and closed by turning the handle and spindle, andthe blind will be retained in any position more or less open.

This mechanism is durable, and can readily be applied to anyshutter,blind, gate, ordoor.

I am aware of the existence in this and an analogous class of inventionsof a hinge-leaf provided with an extension having a pinion upon itsupper corner edge which receives the pintle of the other leaf, and whichis worked byascrewthreaded spindle; also, of aspirally grooved ornotched sleeve connected to the casing or jamb by a casing, within whichit is V disposed, and to the shutter by a bolt, and a cap fitted uponsaid sleeve and formed with an arm connected to the shutter.

Having thus described myinvention,what I claim as new, and desire tosecure by Letters Patent, is

In a shutter-worker, the spindle having a Worm or screw thread upon oneend, in combination with the hinge-leafwith its socket or eye providedwith external teeth formed directly in the surface of said socket oreye,substant-iall y as and for the purpose set forth.

JOHN DIERKS.

\Vitnesses:

Tnos. HULINoH, J OHN T. J AOK.

